CHECK YOUR LEVEL

Limitation of magnetic tapes used for CAD data storage?

• Inability to store binary files
• High cost
• Slow read/write speed
• Incompatibility with CAD formats

Answer explanation

Tapes store large data but are slow in access speed.

CAD monitor sharpness is determined by:

• Screen size
• Refresh rate
• Dot-pitch
• Contrast ratio

Answer explanation

Smaller dot-pitch means sharper display.

Maximum sides in AutoCAD polygon command:

• 10
• 1024
• 64
• Unlimited

Answer explanation

AutoCAD supports 3–1024-sided polygons.

Common CAD data exchange format:

• .EXE
• .CSV
• .DXF
• .PDF

Answer explanation

DXF is widely used for CAD data sharing.

Arc angle in AutoCAD is measured:

• Y-axis clockwise
• Origin in 3D
• Counter-clockwise from X-axis
• Clockwise from X-axis

Answer explanation

AutoCAD measures angles counter-clockwise.

1. CHAMFER = rounded corner. 2. FILLET creates 90° corner (radius 0).

• Only 1 correct
• Only 2 correct
• Both correct
• Both incorrect

Answer explanation

CHAMFER gives angled corners, not round.

Default origin in AutoCAD:

• (1,1)
• (0,0)
• (10,10)
• -100100

Answer explanation

The origin is at (0,0) in WCS.

Command to mirror an object:

• OFFSET
• COPY
• ROTATE
• MIRROR

Answer explanation

MIRROR duplicates across a symmetry axis.

Statement: 1. Radial shakes are wider at the center and narrow at the bark. 2. Star shakes are wider at the bark and narrow at the pith.

• Only 1 is correct
• Only 2 is correct
• Both are correct
• Both are incorrect

Answer explanation

Star shakes widen at bark; radial shakes start fine at bark and move inward.

The IS code for classification of commercial timbers and their zonal distribution is:

• IS 3629
• IS 1141
• IS 399
• IS 1708

Answer explanation

IS 399:1963 provides zonal timber classification in India.